CN217766845U - Vehicle detection device - Google Patents

Abstract

The utility model provides a detection device for vehicle can restrain the drop of radio wave decrement at different positions. The vehicle detection device is suitable for being mounted on the periphery of a bumper of a vehicle. The vehicle detection device includes: a detection member provided inside the bumper and corresponding to an opening in the bumper; and a cover member provided on the bumper so as to fit the opening, wherein an engaging portion is provided on a periphery of the opening of the bumper, an engaged portion is provided on an edge of the cover member, the engaging portion and the engaged portion are engaged with each other, and a thickness of the cover member gradually increases from a position corresponding to a radio wave emission center of the detection member toward the periphery.

Description

Detection Devices for Vehicles

technical field

The utility model relates to a detection device for vehicles.

Background technique

By 2030, provide access to safe, affordable, accessible and sustainable transport systems for all, improving road safety and, in particular, expanding public transport, with special attention to those in vulnerable situations, women, children, persons with disabilities and older persons human needs. Among them, for the automatic driving technology of the vehicle, a vehicle detection device is usually installed inside the front or rear bumper (bumper) of the vehicle, which uses detection components such as radar (radar) to send radio waves to the outside of the vehicle, thereby detecting Parameters such as the surrounding environment of the vehicle are used as the basis for automatic driving. However, the radio waves emitted through the bumper produce different radio wave attenuation at different radiation angles on the bumper. In this way, for a detection component with a wide radio wave emission range (ie, field of view), the radio wave attenuation varies at different locations due to the influence of parameters such as the shape and thickness of the bumper. Therefore, it is desired to improve the detection device for vehicles to suppress the difference in radio wave attenuation at different locations.

[Prior art literature]

[Patent Document]

[Patent Document 1] Chinese Patent Announcement No. CN 211236217 U

[Patent Document 1] Japanese Patent Laid-Open No. 2016-25585

Utility model content

The utility model provides a detection device for vehicles, which can suppress the drop of radio wave attenuation in different parts.

The vehicle detection device of the utility model is suitable for being installed around the bumper of the vehicle. The detecting device for a vehicle includes: a detecting part provided on the inner side of the bumper and corresponding to an opening on the bumper; The periphery of the opening of the bumper is provided with an engaging portion, the edge of the cover member is provided with an engaged portion, the engaging portion and the engaged portion are snap-fitted with each other, and The thickness of the cover member gradually increases from a position corresponding to an electric wave emission center of the detection member toward the periphery.

In an embodiment of the present invention, the engaging portion includes a plurality of engaging protrusions, the engaged portion includes a plurality of engaging holes, and the engaging protrusions and the engaging holes engage with each other. combine.

In an embodiment of the present utility model, a laterally protruding rib is provided on the edge of the cover member, and the engaging hole is provided on the rib.

In an embodiment of the present invention, a positioning portion is provided on the edge of the cover member, a positioned portion is provided around the opening of the bumper, and the positioning portion corresponds to the positioned portion.

In an embodiment of the present invention, the positioning portion includes a plurality of positioning protrusions, the positioned portion includes a plurality of positioning holes, and the positioning protrusions engage with the positioning holes.

In an embodiment of the present invention, the thickness of the cover member in the direction in which the radio wave passes corresponds to N times the half wavelength of the radio wave, where N is a natural number other than 0.

In one embodiment of the present invention, the cover member is made of resin material.

Based on the above, in the detection device for a vehicle of the present invention, the detection component is disposed on the inner side of the bumper and corresponds to the opening on the bumper, and the cover component is disposed on the bumper to match the opening. Wherein, the periphery of the opening of the bumper is provided with an engaging portion, and the edge of the cover member is provided with an engaged portion, and the engaging portion and the engaged portion are engaged with each other, and the thickness of the cover member is emitted from the electric wave corresponding to the detection part. The position of the center gradually increases towards the periphery. In this way, the position corresponding to the detection part on the bumper is replaced by a cover part, and the thickness of the cover part is adjusted in response to the emission angle of the radio wave emission range (that is, the viewing angle) of the detection part, thereby avoiding the radio wave attenuation in different parts Create a gap. Accordingly, the detection device for a vehicle of the present invention can suppress the difference in radio wave attenuation at different locations.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with accompanying drawings.

Description of drawings

Fig. 1 is a schematic exploded view of the structure of a detection device for a vehicle according to an embodiment of the present invention applied in a vehicle;

Fig. 2 is a schematic top view of the vehicle detection device shown in Fig. 1 applied in a vehicle;

Fig. 3 is a partial enlarged schematic view of the bumper used in the vehicle shown in Fig. 1 around the opening;

FIG. 4 is a schematic perspective view of a cover member used in the detection device for a vehicle shown in FIG. 1 .

Explanation of reference signs:

50: vehicle;

52: bumper;

52a: opening;

52b: engaging part;

52c: the positioned part;

100: vehicle detection device;

110: detecting components;

112: detection surface;

120: cover part;

122: engaged part;

124: convex rib;

126: positioning department;

C: center line;

Fr: vehicle front direction;

L: the left direction of the vehicle;

Rr: the rear direction of the vehicle;

R: the right direction of the vehicle;

RN: Radio wave emission range.

Detailed ways

Fig. 1 is an exploded schematic diagram of the vehicle detection device in an embodiment of the present invention applied in a vehicle, Fig. 2 is a schematic top view of the vehicle detection device shown in Fig. 1 applied in a vehicle, Fig. 3 is a schematic diagram of the vehicle detection device shown in Fig. 1 Shown is a partially enlarged schematic diagram of a bumper used in a vehicle around the opening, and FIG. 4 is a perspective schematic diagram of a cover member used in the vehicle detection device shown in FIG. 1 . The specific composition of the vehicle detection device 100 of this embodiment will be described below with reference to FIGS. The left direction L of the vehicle and the right direction R of the vehicle, but this is only one example of the present invention, and the present invention is not limited by this, and it can be adjusted according to requirements.

Please refer to FIG. 1 and FIG. 2 , in this embodiment, the vehicle detection device 100 is suitable for being installed around the bumper 52 of the vehicle 50 . Wherein, the bumper 52 is, for example, mounted on the front or rear of the vehicle body (not shown) of the vehicle 50 (for example, in the drawings, it is arranged on a side corresponding to the vehicle front direction Fr), and is configured to be in the vehicle left and right direction (ie, , the beam structure extending in the vehicle left direction L and the vehicle right direction R) in FIG. ) collision structure. Furthermore, the vehicle detection device 100 is installed around the bumper 52 , preferably at positions corresponding to the four corners of the vehicle 50 (on the left and right sides of the bumper 52 shown in FIG. 1 ). Thus, the vehicle detection device 100 can be used to send radio waves to the outside of the vehicle 50 to detect parameters such as the surrounding environment of the vehicle 50 as a basis for automatic driving. However, the present invention is not limited thereto, and it can be adjusted according to requirements.

Specifically, in this embodiment, as shown in FIGS. 1 and 2 , the detection device 100 for a vehicle includes a detection component 110 and a cover component 120 . The detection part 110 is installed inside the bumper 52 and corresponds to the opening 52 a on the bumper 52 . Wherein, the detection component 110 is, for example, a radar, and is mounted on the inside of the bumper 52 with the detection surface 112 facing the outside, and the detection surface 112 faces the opening 52a. Furthermore, the cover member 120 is provided on the bumper 52 so as to fit into the opening 52a. Wherein, as shown in Fig. 3 and Fig. 4, the periphery of the opening 52a of the bumper 52 is provided with an engaging portion 52b, and the edge of the cover member 120 is provided with an engaged portion 122, and the engaging portion 52b and the engaged portion 122 are connected to each other. Snap together. Preferably, the cover part 120 is disposed on the outside of the bumper 52 so as to cover the opening 52a and the detection part 110 corresponding to the opening 52a, but not limited thereto.

Furthermore, in this embodiment, the said arrangement on the bumper 52 in a manner that matches the opening 52a means that the outer contour of the cover member 120 corresponds to the inner contour of the opening 52a (including size and shape, etc.) Therefore, the cover member 120 can be engaged with the engaged portion 122 via the engaging portion 52b, so that the cover member 120 can be seamlessly engaged with the opening 52a. In this way, it can be considered that the portion of the bumper 52 corresponding to the detection member 110 (that is, the opening 52 a ) is replaced by the cover member 120 . Wherein, the cover part 120 is made of resin material, so it has a little material elasticity, and can be slightly deformed by force, which helps the cover part 120 to be better buckled on the opening 52a through elastic deformation, and can omit possible Use of metal locks that interfere with radio waves. However, the present invention does not limit the material of the cover part 120, which can be adjusted according to requirements.

In addition, in this embodiment, as shown in FIG. 3 and FIG. 4 , the engaging portion 52b provided on the periphery of the opening 52a of the bumper 52 includes a plurality of engaging protrusions, and the engaging portion 52b provided on the edge of the cover member 120 is engaged. The engaging portion 122 includes a plurality of engaging holes, and the engaging protrusions and engaging holes engage with each other. Furthermore, a laterally protruding rib 124 is provided on the edge of the cover member 120 , and an engaging hole for the engaged portion 122 is provided on the rib 124 . In this way, when the cover member 120 is mounted on the opening 52a from the outside of the bumper 52, for example, the laterally protruding ribs 124 of the cover member 120 abut against the sidewalls protruding from the periphery of the opening 52a, and serve as more of the engaging portion 52b. Each of the engaging protrusions is inserted into a plurality of engaging holes serving as the engaged portion 122, which helps the cover member 120 to be better engaged on the opening 52a. However, the present invention does not limit the quantity and specific structure of the engaging portion 52 b and the engaged portion 122 , which can be adjusted according to requirements.

In addition, in this embodiment, as shown in FIGS. 3 and 4 , the edge of the cover member 120 is provided with a positioning portion 126, the periphery of the opening 52a of the bumper 52 is provided with a positioned portion 52c, and the positioning portion 126 and the positioned portion 52c correspond to each other. Wherein, preferably, the positioning portion 126 provided on the edge of the cover member 120 includes a plurality of positioning protrusions, the positioned portion 52c provided on the periphery of the opening 52a of the bumper 52 includes a plurality of positioning holes, and the positioning protrusions and The positioning holes are engaged with each other. In addition, the positioning protrusions as the positioning portion 126 are large in size and located at the corners of the cover member 120 , and the engaging holes as the engaged portion 122 are small in size and scattered around the edge of the cover member 120 . Similarly, the positioning hole as the positioned portion 52c is set to be large in size and located at the corner of the opening 52a of the bumper 52, and the engaging protrusions as the engaging portion 52b are set to be small in size and scattered around the opening 52a. all week. In this way, when the cover member 120 is installed on the opening 52a from the outside of the bumper 52, the positioning portion 126, which is large in size and located at the corner, can be positioned preferentially with the positioned portion 52c, and then the engaged portion distributed over the entire circumference can be used for positioning. The fastening of the portion 52b with the engaged portion 122 helps the cover member 120 to be better fastened to the opening 52a. However, the present invention does not limit the number, specific structure, and arrangement of the positioning portion 126 and the positioned portion 52c, which can be adjusted according to requirements.

Furthermore, in this embodiment, as shown in FIG. 2 and FIG. 3 , the portion of the bumper 52 corresponding to the detection part 110 (ie, the opening 52 a ) is replaced by the cover part 120 for the purpose of adjusting the thickness of the cover part 120 . That is to say, the thickness of the cover part 120 gradually increases from a position corresponding to the radio wave emission center of the detection part 110 (for example, the center line C shown in FIGS. 2 and 3 ) toward the periphery. Wherein, the position of the cover part 120 corresponding to the radio wave emission center of the detection part 110 (for example, the centerline C) is equivalent to the position where the radio wave emitted by the detection part 110 passes through the cover part 120 at an emission angle of 0 degrees, and the farther to the periphery Then the emission angle is larger, so that the thickness of the cover member 120 gradually increases. Preferably, the outer surface of the cover member 120 corresponds to the outer surface of the bumper 52, so that the thickness of the cover member 120 increases toward the inner side, thereby maintaining the integrity of the outer surface shape, but not limited thereto.

In addition, in this embodiment, as shown in FIG. 2 , the coverage area of the cover member 120 (that is, the size of the opening 52a) is roughly equivalent to the radio wave emission range RN of the detection member 110, and the radio wave emission range RN is about It is the range of 80 degrees to the left and right of the radio wave emission center (for example, the central line C), but this angle value is only an example of the radio wave emission range RN, and the present invention is not limited thereto. Moreover, the thickness of the cover member 120 in the direction in which the radio wave passes corresponds to N times the half wavelength of the radio wave, and the N is a natural number other than 0, that is, 1, 2, 3, 4, 5, etc., but it is not limited thereto. . In this way, the position corresponding to the detection part 110 on the bumper 52 (that is, the opening 52a) is replaced by the cover part 120, and the thickness of the cover part 120 is adjusted according to the emission angle of the radio wave emission range (that is, the viewing angle) of the detection part 110 , thus avoiding the drop of radio wave attenuation in different parts. Accordingly, the detection device 100 for a vehicle can suppress the difference in radio wave attenuation at different locations.

To sum up, in the detection device for a vehicle of the present invention, the detection part is arranged on the inner side of the bumper and corresponds to the opening on the bumper, and the cover part is arranged on the bumper in a manner to match the opening. Wherein, the periphery of the opening of the bumper is provided with an engaging portion, and the edge of the cover member is provided with an engaged portion, and the engaging portion and the engaged portion are engaged with each other, and the thickness of the cover member is emitted from the electric wave corresponding to the detection part. The position of the center gradually increases towards the periphery. Preferably, the thickness of the cover member in the direction in which the radio wave passes corresponds to N times the half wavelength of the radio wave, where N is a natural number other than 0. In this way, the position corresponding to the detection part on the bumper is replaced by a cover part, and the thickness of the cover part is adjusted in response to the emission angle of the radio wave emission range (that is, the viewing angle) of the detection part, thereby avoiding the radio wave attenuation in different parts Create a gap. Accordingly, the detection device for a vehicle of the present invention can suppress the difference in radio wave attenuation at different locations.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. range.

Claims (7)

1. A detection device for a vehicle, suitable for being installed on the periphery of the bumper of the vehicle, characterized in that it comprises: a detection part disposed on the inner side of the bumper and corresponding to the opening on the bumper; and a cover member disposed on said bumper in such a manner as to fit said opening, wherein The periphery of the opening of the bumper is provided with an engaging portion, the edge of the cover member is provided with an engaged portion, the engaging portion and the engaged portion are engaged with each other, and The thickness of the cover member gradually increases from a position corresponding to an electric wave emission center of the detection member toward the periphery. 2. The detection device for a vehicle according to claim 1, wherein: The engaging portion includes a plurality of engaging protrusions, the engaged portion includes a plurality of engaging holes, and the engaging protrusions and the engaging holes engage with each other. 3. The detection device for a vehicle according to claim 2, wherein: The edge of the cover part is provided with a laterally protruding convex rib, and the engaging hole is arranged on the convex rib. 4. The detection device for a vehicle according to any one of claims 1 to 3, characterized in that, A positioning portion is provided on the edge of the cover member, a positioned portion is provided around the opening of the bumper, and the positioning portion corresponds to the positioned portion. 5. The detection device for a vehicle according to claim 4, wherein: The positioning portion includes a plurality of positioning protrusions, the positioned portion includes a plurality of positioning holes, and the positioning protrusions engage with the positioning holes. 6. The detection device for a vehicle according to any one of claims 1 to 3, characterized in that, The thickness of the cover member in the direction in which the radio wave passes corresponds to N times the half wavelength of the radio wave, where N is a natural number other than 0. 7. The detection device for a vehicle according to any one of claims 1 to 3, characterized in that, The cover member is made of resin material.

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